KR102398597B1 - Waste vinyl scrap foreign material and moisture removal device - Google Patents

Abstract

Disclosed is a device for removing foreign material and moisture from waste vinyl scrap, comprising: an outer case; an outer drum accommodated in the outer case, spaced apart from the inner surface of the outer case and having a side surface with a mesh network; an outer drum cover covering an upper part of the outer drum and having a conical shape; a rotary table supporting a lower part of the outer drum and rotated by a rotary driving device; a hollow cylindrical inner drum accommodated in the outer drum and spaced apart from the inner surface of the outer drum; a scrap input unit connected to the lower part of the inner drum to input scrap supply air and wet scrap to the inside of the inner drum from the lower part to the upper part of the inner drum; a vortex type air generator supplying vortex type air for drying scrap between the inner drum and the outer drum; and a dry scrap suction unit extending from the lower part of the outer drum to the outside of the outer case to suck scrap, which is discharged between the upper part of the outer drum and the upper part of the inner drum and then, and dried while moving towards the lower part of the outer drum along the vortex type air for drying scrap, to discharge to a scrap storage space outside of the outer case. The device for removing foreign material and moisture from waste vinyl scrap of the present invention has the advantage of easily removing residual moisture and foreign material from the waste vinyl scrap and the surface of the scrap by a spiral rotation process of the waste vinyl scrap through vortex type air after dehydration process in the waste vinyl recycling process.

Description

Waste vinyl scrap foreign material and moisture removal device {WASTE VINYL SCRAP FOREIGN MATERIAL AND MOISTURE REMOVAL DEVICE}

The present invention relates to a waste vinyl scrap foreign material and moisture removal device, and more particularly, waste vinyl scrap foreign material and moisture for desorbing residual moisture of waste vinyl scrap that has undergone a dehydration process in a waste vinyl recycling process and foreign substances attached to the surface. It is about the removal device.

Agricultural films are widely used for greenhouses, tunnels, mulching, etc. in order to obtain suitable agricultural conditions. In general, vinyl used for mulching is more difficult to recycle than vinyl used for houses or tunnels because there is a lot of soil on the surface. Agricultural film is a single component of polyethylene, which is a material that is easy to recycle, but it is difficult to clean and has a high processing cost, so it shows a low recycling rate. Therefore, environmental pollution caused by them is a problem. For recycling of such waste vinyl, a wet cleaning means with water is generally used.

In other words, after manually separating bulky stones, metals, and other types of foreign substances contained in the collected waste plastic, the vinyl is crushed to a size of about 5 cm Ⅷ 5 cm, and after removing the soil with water in the first washing step, It goes through the secondary and tertiary washing means, and is subjected to a dehydration process.

However, even after the dehydration process, it was difficult to completely remove the moisture from the waste vinyl, and since the moisture was not completely removed, there was a problem in that the foreign substances attached to the surface of the waste vinyl were difficult to detach.

Korean Patent No. 10-0922300

Accordingly, an object of the present invention is to provide a waste vinyl scrap foreign material and a water removal device capable of easily removing residual moisture of the waste vinyl scrap and foreign matter on the surface of the scrap.

A waste vinyl scrap foreign material and moisture removal device according to an embodiment of the present invention includes an outer case; an outer drum spaced apart from the inner surface of the outer case and accommodated in the outer case, the side surface of which is composed of a mesh network; an outer drum cover covering the upper end of the outer drum and having a conical shape; a rotary table supporting the lower portion of the external drum and being rotated by a rotary driving device; a hollow cylindrical inner drum spaced apart from the inner surface of the outer drum and accommodated in the outer drum; a scrap input unit connected to the lower part of the inner drum to inject scrap supply air and wet scrap into the inner drum from the lower part of the inner drum to the upper part; a vortex-type air generator for supplying vortex-type air for drying scrap between the inner drum and the outer drum; And it is provided to extend from the lower part of the outer drum to the outside of the outer case, is discharged between the upper end of the outer drum and the upper end of the inner drum, and then rides the vortex-type air for drying the scrap and moves toward the lower part of the outer drum and a dry scrap suction unit configured to suck the dried scrap from the lower part of the external drum and discharge it to a scrap storage space (not shown) outside the outer case.

In one embodiment, the vortex-type air generator may be arranged at regular intervals along the circumferential direction of the outer drum so that a discharge end for discharging the vortex-type air passes through the outer case in an oblique direction.

In one embodiment, the auxiliary air is supplied between the inner drum and the outer drum, and further comprising an air knife for supplying the auxiliary air in a rotational direction and a forward direction of the vortex air, the auxiliary air is the vortex type Air can be joined.

The waste vinyl scrap foreign material and moisture removal device according to the present invention removes the residual moisture of the waste vinyl scrap and foreign substances on the surface of the scrap through the process of spirally rotating the waste vinyl scrap after the dehydration process in the waste vinyl recycling process through vortex air. There is an advantage that it can be easily removed.

1 is a perspective view for explaining the configuration of a waste vinyl scrap foreign material and moisture removal apparatus according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of FIG. 1 .
3 is a view schematically showing the arrangement of the vortex-type air generator and the air knife shown in FIG.
4 is a view schematically showing the arrangement of the vortex type air generator shown in FIG.
5 is a view schematically showing the arrangement of the air knife shown in FIG.

Hereinafter, a waste vinyl scrap foreign material and moisture removal device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements. In the accompanying drawings, the dimensions of the structures are enlarged than the actual size for clarity of the present invention.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or a combination thereof described in the specification exists, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning 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

1 is a perspective view for explaining the configuration of a waste vinyl scrap foreign material and moisture removal apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of FIG. 1 , and FIG. 3 is a vortex type air generator shown in FIG. 2 and It is a view schematically showing the arrangement of the air knife, FIG. 4 is a view schematically showing the arrangement of the vortex type air generator shown in FIG. 2, and FIG. 5 is a view schematically showing the arrangement of the air knife shown in FIG. It is a drawing.

1 to 5 , the waste vinyl scrap foreign material and moisture removal device according to an embodiment of the present invention includes an outer case 110 , an outer drum 120 , an outer drum cover 190 , and a rotary table 180 . , an inner drum 130 , a scrap input unit 140 , a vortex air generator 150 , an air knife 160 , and a dry scrap suction unit 170 may be included.

The outer case 110 may accommodate the inner drum 130 and the outer drum 120 . For example, the outer case 110 may be provided in the shape of a hollow hexagonal pillar having a planar hexagonal shape.

The outer drum 120 is spaced apart from the inner surface of the outer case 110 and accommodated in the outer case 110, may be provided in a hollow cylindrical shape, and the side surface is provided in the form of a mesh network to allow air to flow in. can be

In addition, the external drum 120 may be configured in a form in which a plurality of unit drums 121 are stacked, and accordingly, the height of the external drum 120 may be adjusted.

The outer drum cover 190 covers the upper end of the outer drum 120 , and may be provided in a cone shape, and a portion thereof may be configured in the form of a mesh network.

The rotary table 180 supports the lower portion of the external drum 120 and may be rotated by a rotation driving device (not shown). The shape of the rotary drive device is not particularly limited, and may include a shaft coupled to the center of the rotary table 180, a motor for rotating the shaft, and a belt connecting the drive shaft of the motor and the shaft.

In addition, the rotary table 180 may be supported through a drum base 200 disposed under the rotary table 180 , and the rotary table 180 is freely supported on the drum base 200 while supporting the rotary table 180 . A plurality of rollers 210 that can be rotated may be provided.

The inner drum 130 is spaced apart from the inner surface of the outer drum 120 and accommodated in the outer drum 120, and the height of the upper end is lower than the height of the upper end of the outer drum 120. can The inner drum 130 may be disposed on the rotary table 180 , for example, may be rotated together with the outer drum 120 .

The scrap input unit 140 may be connected to the lower portion of the inner drum 130 to inject scrap supply air and wet scrap into the inner drum 130 . For example, the scrap input unit 140 has an end at the end of the scrap conveying pipe 141 and the scrap conveying pipe 141 passing through the bottom of the rotary table 180 and the bottom of the inner drum 130 . It may include a scrap discharging member 142 in the shape of an inverted cone that is coupled and whose diameter increases in a direction away from the scrap conveying pipe 141 .

The vortex-type air generator 150 may supply vortex-type air for drying scrap between the inner drum 130 and the outer drum 120 . To this end, the vortex-type air generator 150 is arranged at regular intervals along the circumferential direction of the outer drum 120 so that the end for discharging the vortex-type air passes through the outer case 110 in an oblique direction. can be For example, the number of the vortex air generator 150 may be six, and each vortex air generator 150 has a ring blower 151 and one end connected to the ring blower 151 and the other end connected to the outer case. It may include an air supply line 152 for supplying vortex-type air for scrap drying to the inner space of the external drum 120 through the 110 . The air supply line 152 may be in the form of a hose or a pipe, and air may be discharged from an end penetrating the external drum 120 .

The air knife 160 may supply auxiliary air between the inner drum 130 and the outer drum 120, but the auxiliary air may be supplied in a rotational direction and a forward direction of the vortex-type air. The auxiliary air may be joined to the vortex-type air. For example, the air knife 160 is disposed between the outer case 110 and the outer drum 120, and the air supply line 152 is positioned higher than the position where the outer case 110 passes through. It may be connected to the turbofan and air may be supplied, and six may be provided.

The dry scrap suction unit 170 is provided to extend from the lower portion of the outer drum 120 to the outside of the outer case 110 , and is discharged between the upper end of the outer drum 120 and the upper end of the inner drum 130 . After the scrap drying vortex air and the auxiliary air move toward the lower part of the external drum 120, the dried scrap is sucked from the lower part of the external drum 120, and the outside of the external case 110 is removed. It may be configured to discharge to a scrap storage space (not shown). For example, the dry scrap suction part 170 has a circular or square shape at the bottom and a scrap inlet 171 having a diameter or a size decreasing toward the top, and from the upper end of the scrap inlet 171 . It may include a scrap discharge pipe 172 extending to the outside through the upper surface of the outer case (110).

Here, the scrap may be discharged through the scrap discharge pipe 172 as the vortex-type air for drying the scrap rises while being introduced into the scrap inlet 171 and the scrap discharge pipe 172 .

The waste vinyl scrap foreign material and moisture removal apparatus according to an embodiment of the present invention is used to remove foreign materials and moisture from scrap that has been dehydrated in a waste vinyl recycling process. That is, the pulverized waste vinyl scrap that has been dehydrated in the waste vinyl recycling process is introduced and is used to remove the residual moisture of the scrap and foreign substances introduced together with the scrap.

Hereinafter, a process for removing moisture from scrap in the waste vinyl scrap foreign material and moisture removal apparatus according to an embodiment of the present invention will be described.

First, in a state in which the vortex air generator 150 and the air knife 160 are in operation, the dewatered scrap passes through the scrap transfer pipe 141 of the scrap input unit 140 and ends at the end of the scrap transfer pipe 141 . It is input into the lower part of the inner drum 130 through the scrap discharge member 142 . At this time, the scrap is fed together with the scrap supply air to be fed into the inner drum 130 , and is moved to the upper end of the inner drum 130 by the scrap supply air.

Subsequently, the scrap moved to the upper end of the inner drum 130 collides with the outer drum cover 190, and moisture and foreign substances in the scrap are primarily separated, and then the upper end of the inner drum 130 and the outer drum ( After being discharged through the upper end of the 120), it moves between the side surface of the inner drum 130 and the side surface of the outer drum 120.

Then, the vortex-type air for drying scrap is formed between the side surface of the inner drum 130 and the side surface of the outer drum 120 through the vortex air generator 150 and the air knife 160, so that the inner drum ( The scrap introduced between the side surface of the 130 ) and the side surface of the outer drum 120 moves spirally toward the lower end of the inner drum 130 on the vortex-type air for drying the scrap. In this process, since the scrap moves away from the center of rotation by the centrifugal force of the vortex air, it collides with the mesh network on the side surface of the outer drum 120, and moisture and foreign substances in the scrap are secondarily separated.

Subsequently, the scrap moved to the lower end of the inner drum 130 is introduced into the scrap inlet 171 of the dry scrap suction unit 170 together with the vortex air for drying the scrap while at the upper end of the scrap discharge pipe 172 . moves to and is discharged.

In the waste vinyl scrap foreign material and moisture removal device according to an embodiment of the present invention, the residual moisture and scrap of the waste vinyl scrap through the process of spirally rotating the waste vinyl scrap after the dehydration process through the vortex air in the waste vinyl recycling process It has the advantage of being able to easily remove foreign substances on the surface of the

In addition, the external drum 120 rotates, and the vortex-type air is continuously supplied from the outside of the external drum 120 toward the mesh network of the external drum 120 , so that the wet scrap is removed from the external drum 120 . Even if it is attached to the mesh network on the side, the wet scrap is easily separated from the mesh network of the outer drum 120 by the rotational force of the external drum 120 and the continuous supply of the vortex air, so that the wet scrap is always easily removed from moisture and foreign substances Removal can be made.

On the other hand, the surface of each of the ring blower 151 and the air supply line 152 of the vortex air generator 150 of the waste vinyl scrap foreign material and moisture removal device according to an embodiment of the present invention and the surface of the air knife 160 An antifouling coating layer made of an antifouling coating composition may be applied to effectively achieve adhesion prevention and removal of contaminants.

The antifouling coating composition contains sodium sesquicarbonate and butylcarbitol in a molar ratio of 1:0.01 to 1:2, and the total content of sodium sesquicarbonate and butylcarbitol is 1 to 10% by weight based on the total aqueous solution. .

The sodium sesquicarbonate and butyl carbitol have a molar ratio of 1:0.01 to 1:2, and when the molar ratio is out of the above range, the surface of each of the ring blower 151 and the air supply line 152 and the air knife ( 160) has a problem in that the coatability on the surface is lowered or the moisture adsorption on the surface increases after application, so that the coating film is removed.

The sodium sesquicarbonate and butyl carbitol are preferably 1 to 10% by weight of the total aqueous solution of the composition, and when it is less than 1% by weight, the surface of each of the ring blower 151 and the air supply line 152 and the air knife 160 There is a problem in that the applicability on the surface is lowered, and when it exceeds 10% by weight, crystal precipitation is likely to occur due to an increase in the thickness of the coating film.

On the other hand, as a method of applying the present antifouling coating composition on the surface of each of the ring blower 151 and the air supply line 152 and the surface of the air knife 160, it is preferable to apply the composition by a spray method. In addition, the final coating film thickness on the surface of each of the ring blower 151 and the air supply line 152 and the surface of the air knife 160 is preferably 700 to 2500 Å, more preferably 900 to 2000 Å. If the thickness of the coating film is less than 700 Å, there is a problem of deterioration in the case of high-temperature heat treatment, and if it exceeds 2500 Å, there is a disadvantage in that crystal precipitation on the coated surface is easy to occur.

In addition, the present antifouling coating composition may be prepared by adding 0.1 mol of sodium sesquicarbonate and 0.05 mol of butylcarbitol to 1000 ml of distilled water and then stirring.

The reason why the ratio of the components and the thickness of the coating film were numerically limited as described above was that the present inventor repeatedly failed several times and analyzed through the test results. As a result, the optimum antifouling coating effect was exhibited at the ratio.

On the other hand, the external drum 120 and the internal drum 130 of the waste vinyl scrap foreign material and moisture removal device according to an embodiment of the present invention may be made of a metal material, and each surface has a metal surface in order to prevent corrosion of the metal surface. An anti-corrosion coating layer may be applied.

The coating material of this anti-corrosion coating layer is bisphenol A novolac-type glycidyl ether 19% by weight, isopropylamine 18% by weight, hafnium 14% by weight, organic magnesium 14% by weight, titanium oxide (TiO ₂ ) 9% by weight, 10 wt% of aluminum oxide (Al ₂ O ₃ ), 16 wt% of polymer fluorochemical active, and a coating thickness of 7 μm.

Bisphenol A novolac-type glycidyl ether and isopropylamine serve to prevent corrosion and discoloration, and hafnium is a corrosion-resistant transition metal element that has excellent waterproof and corrosion resistance.

The organic magnesium oxide serves to impart alkali resistance and slidability to the surface of the coating film, the polymer fluorochemical active serves as a surfactant, and titanium oxide and aluminum oxide are added for the purpose of fire resistance and chemical stability.

The reason why the ratio of the constituents and the coating thickness are numerically limited as described above is that the present inventors repeatedly failed several times and analyzed through the test results. As a result, the optimal anti-corrosion effect was exhibited at the above ratio.

On the other hand, a vibration absorbing member (not shown) in the form of a rubber material pad may be provided at the lower end of the drum base 200 of the waste vinyl scrap foreign material and moisture removal device according to an embodiment of the present invention.

The raw material content ratio of the vibration absorbing member is 60% by weight of rubber, 8% by weight of dibutylthiourea, 6% by weight of calcium stearate, 19% by weight of carbon black, 3C (N-PHENYL-N'-ISOPROPYL-P-PHENYLENEDIAMINE ) 3% by weight and 4% by weight of organic peroxide are mixed.

Dibutylthiourea is added to improve vulcanization acceleration, etc., calcium stearate is added to act as a softener, and carbon black is added to increase or improve abrasion resistance and thermal conductivity.

3C (N-PHENYL-N'-ISOPROPYL-P-PHENYLENEDIAMINE) is added as an antioxidant, and organic peroxide is added to act as an accelerator.

Accordingly, in the present invention, since elasticity, toughness and rigidity of the vibration absorbing member are increased, durability is improved, and thus the life of the vibration absorbing member is increased.

The tensile strength of the rubber material is 155Kg/cm2.

The reason for limiting the rubber material constituents and constituents and limiting the numerical value of the mixing ratio is that the present inventor repeatedly failed several times and analyzed the test results to find the optimal effect in the above constituents and numerical limiting ratios. indicated.

On the other hand, a heat dissipation coating agent is applied to the surface of the outer case 110 of the waste vinyl scrap foreign material and moisture removal device according to an embodiment of the present invention, so that the heat emitted from the outer case 110 is not sufficiently dissipated. 110) It can prevent the surface from being overheated and dissipate heat effectively.

This heat dissipation coating composition is potassium silicate 58% by weight, chromium oxide 11% by weight, graphite 13% by weight, silicon nitride 8% by weight, sodium hydroxide (NaOH) 3% by weight, titanium oxide 3% by weight, polyamide wax 2% by weight, It consists of 2% by weight of 3-aminopropyl trimethoxysilane.

Potassium silicate acts as a binder resin, chromium oxide acts as a wear resistance, graphite has excellent thermal conductivity and electrical properties, silicon nitride improves strength and prevents cracking, sodium hydroxide acts as a dispersant, and titanium oxide has weather resistance For this purpose, polyamide wax acts as an anti-settling agent, and 3-aminopropyl trimethoxysilane acts as an adhesion enhancer.

The reason for limiting the constituent materials and constituents as described above and limiting the numerical value of the mixing ratio is that the present inventors repeatedly failed several times and analyzed the test results to obtain the optimal effect from the constituents and numerical limiting ratios. indicated.

The description of the presented embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not to be limited to the embodiments presented herein but should be construed in the widest scope consistent with the principles and novel features presented herein.

110: outer case 120: outer drum
130: inner drum 140: scrap input unit
150: vortex air generator 160: air knife
170: dry scrap suction unit

Claims (3)

outer case 110;
The outer drum 120 is spaced apart from the inner surface of the outer case 110 and accommodated in the outer case 110, the side surface of which is composed of a mesh network;
an outer drum cover 190 covering the upper end of the outer drum 120 and having a conical shape;
a rotary table 180 that supports the lower portion of the external drum 120 and is rotated by a rotary drive device;
a hollow cylindrical inner drum 130 spaced apart from the inner surface of the outer drum 120 and accommodated in the outer drum 120;
a scrap input unit 140 connected to the lower portion of the inner drum 130 and configured to inject scrap supply air and wet scrap into the inner drum 130 from the lower portion of the inner drum 130 to the upper side;
a vortex-type air generator 150 for supplying vortex-type air for drying scrap between the inner drum 130 and the outer drum 120; and
It is provided to extend from the lower part of the outer drum 120 to the outside of the outer case 110 , and is discharged between the upper end of the outer drum 120 and the upper end of the inner drum 130 , and then is a vortex type for drying the scrap. It is configured to suck the dried scrap from the lower part of the external drum 120 while riding the air and move toward the lower part of the external drum 120 and discharge it to a scrap storage space (not shown) outside the external case 110 . dry scrap suction unit 170;
The vortex-type air generator 150 is arranged at regular intervals along the circumferential direction of the outer drum 120, and the discharge end for discharging the vortex-type air passes through the outer case 110 in an oblique direction. characterized,
Waste vinyl scrap foreign material and moisture removal device. delete outer case 110;
The outer drum 120 is spaced apart from the inner surface of the outer case 110 and accommodated in the outer case 110, the side surface of which is composed of a mesh network;
an outer drum cover 190 covering the upper end of the outer drum 120 and having a conical shape;
a rotary table 180 that supports the lower portion of the external drum 120 and is rotated by a rotary drive device;
a hollow cylindrical inner drum 130 spaced apart from the inner surface of the outer drum 120 and accommodated in the outer drum 120;
a scrap input unit 140 connected to the lower portion of the inner drum 130 and configured to inject scrap supply air and wet scrap into the inner drum 130 from the lower portion of the inner drum 130 to the upper side;
a vortex-type air generator 150 for supplying vortex-type air for drying scrap between the inner drum 130 and the outer drum 120; and
It is provided to extend from the lower part of the outer drum 120 to the outside of the outer case 110 , and is discharged between the upper end of the outer drum 120 and the upper end of the inner drum 130 , and then is a vortex type for drying the scrap. It is configured to suck the dried scrap from the lower part of the external drum 120 while riding the air and move toward the lower part of the external drum 120 and discharge it to a scrap storage space (not shown) outside the external case 110 . dry scrap suction unit 170;
It further includes an air knife 160 that supplies auxiliary air between the inner drum 130 and the outer drum 120, but supplies the auxiliary air in the rotation direction and the forward direction of the vortex air,
The auxiliary air is characterized in that it joins the vortex-type air,
Waste vinyl scrap foreign material and moisture removal device.

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