KR102376751B1 - Waste catcher grinding system with noise and dust reduction functions - Google Patents

Abstract

The present invention relates to a waste foamed resin grinding device for recycling waste foamed resin into a foamed product, etc. by crushing and processing waste foamed resin into lumps of a certain size to make particles in the form of raw materials and then putting the waste foamed resin into a molding process and, more specifically, to a new type of waste foamed resin grinding device with a noise and dust reduction function, capable of minimizing the generation of the noise of the grinding device by grinding the waste foamed resin injected into the grinding device in the form of a millstone. In particular, not only can the size of the discharged foamed resin be adjusted in various ways, but also the generation of dust can be suppressed by physically preventing the waste foamed resin from being ground into small pieces and scattering in the air. Waste foamed resin particles discharged can be sorted and processed by size and density, so the foamed resin particles of various sizes can be recycled. The waste foamed resin grinding device comprises a housing, a grinding unit, and a screen unit.

Description

Waste catcher grinding system with noise and dust reduction functions

The present invention relates to a waste foamed resin crushing device for pulverizing and processing the waste foamed resin into a lump of a certain size, making it into particles in the form of a raw material, and injecting it back into the molding process to recycle it as a foamed product, etc. The generation of noise from the crusher can be minimized by pulverizing the waste foamed resin injected into the crusher in a millstone type. In particular, the size of the discharged foamed resin can be variously adjusted, and the waste foamed resin can be pulverized into small pieces. It is a new type of foamed resin particle of various sizes that can be physically prevented from being dispersed in the air, thereby suppressing the generation of dust and at the same time being able to sort and process the discharged waste foamed resin particles by size and density. It relates to a waste foaming resin pulverizing device having a noise and dust reduction function.

In general, expanded poly-styrene (EPS, hereinafter referred to as styrofoam), which is one of the representative foaming resins, called styrofoam or styropor, is a buffer packaging material, a building insulation material, a box for agricultural and marine products, and a buoyancy material.材), ornaments, insulating materials, or disposable containers, etc., are widely used throughout our industry.

This is made by injecting hydrocarbon gas such as pentane or butane into polystyrene resin and then inflating it by applying heat with steam. The foamed particles are aged in the air for 4 to 24 hours, and then vented using compressed air in the space between the molds (female molds, male molds) that form the product shape to be produced. The individual particles are inflated and fused, cooled and then released to complete the product. At this time, countless vents (0.3~0.8mm) finely formed on the entire surface of the mold are very important for filling foaming raw materials, fusion molding, cooling, and releasing. The performance of the mold is lowered, resulting in lower productivity and higher defect rules. Therefore, the existing pulverized particles, which generate a lot of dust, are currently not used by most molding companies due to great restrictions in recycling them by putting them back into the process. Particles that are usually expanded by 50 to 60 times are made of air, so 98% of the volume is made of air, so it is a resource-saving product with excellent economic feasibility. At the same time, it has a small specific gravity and light weight. Although it is widely used in various products, the products discarded after use cannot be recycled into particles with high added value, but are melted and used to produce low-quality injection products. It is impossible.

The collected waste foamed resin is crushed finely using a plastic crusher and melted using electric heat to minimize the volume and transport it to a recycling plant that produces low-grade plastic (repelleting). It is greatly affected and limits the use of recycled resin, and products contaminated during use, collection, and transportation are also restricted in recycling and incinerated. Except for pulverizing and mixing some of the insulator products, the entire amount of Styrofoam is melted or crushed and cut into small-sized particles in advance. A problem arises from this. In order to prevent this, expensive additives must be added, so it is not used unless absolutely necessary.

In addition, in the case of melting, toxic gases (RTVM, such as styrene monomer, ethylbenzene, toluene, etc.) are released due to the decomposition of the resin due to heat, and there is a problem that causes various pollution. It is so low that only a small amount can be mixed with the new material.

Looking at the prior art related to the crushing device for crushing the waste foamed resin into small particles for recycling of the waste foamed resin as described above, published Patent Publication No. 10-2001-0103841 (published date: November 24, 2001) The spent foamed resin crushing device is a spent foamed resin crushing device in which a waste foamed resin crushing means rotating by a motor is installed inside a main body having an inlet, wherein the inner central part of the main body has an outer periphery A pair of grinding rollers having a plurality of rotating teeth over their entire length are installed horizontally to rotate in the reverse direction at a distance from each other, and gears rotating by receiving power from a motor are installed on the rotating shaft of the grinding roller to engage with each other, the both sides On the inner wall of the main body on the outer horizontal line of the grinding roller, a horizontal holder is installed horizontally over the entire length, and on the upper surface of the horizontal holder, a fixed blade with fixed teeth facing each other in a form that can engage with the rotary teeth of the grinding roller is formed at the tip This is installed, and the lower end has a gap with the upper surface of the fixed blade on the inner walls of both sides of the upper body of the fixed blade, and the front and rear ends have a gap with the front and rear inner walls of the body. , It is characterized in that a screen combined with a mesh or perforated plate in the form of two semi-circular tubes is installed below the pair of crushing rollers to surround the lower side of the crushing roller.

In another prior art, Laid-Open Patent Publication No. 10-2021-0061702 (published date: May 28, 2021) Styrofoam crushing device, the crushing unit having an open upper part and a hollow inner space, and disposed at the bottom of the crushing unit It consists of a crushing unit forming a set space and a discharge unit coupled to both sides of the crushing unit and connected to the crushing unit space, wherein the crushing unit has an inclined roof and one side is cut in an oblique direction; It is seated on the upper portion and has a hollow inner space, a crushing saw blade portion interposed in the inner space of the receiving portion, and a crushing motor connected to the crushing saw blade unit in a chain, wherein the crushing unit is a form in which several blocks are joined. A support frame comprising a support frame, a crushing saw blade coupled to the horizontal surface of the support frame, a perforated plate installed to hang below the crushing saw blade, a crushing motor connected to the crushing saw blade in a chain, and an upper block of the support frame. It includes an external shielding plate, and the discharge unit includes a discharge plate composed of two sets, a circular discharge tube coupled to each discharge plate and having a hollow inner space, and a discharger introduced into the inner space of each discharge tube. It is characterized by being made.

However, as described above, the conventional pulverizer consisting of the crushing blade of the pulverizing roller and the waste foaming resin by rotating a pair of pulverizing rollers having several pulverizing blades and injecting the waste effervescent resin into the pulverizer as described above. There is a problem in that noise is generated during the collision of the crushing blades. In particular, in the process of crushing the waste foamed resin through the rotation of the crushing blade, the size is unevenly formed, and the shape does not achieve a smooth spherical shape and forms an angular polygonal shape, especially Some particles exposed to the grinding blade several times are finely pulverized close to dust, contaminating the surrounding environment by floating a large amount of dust in the air. When it reaches the level of 40-50%, the crushing efficiency of the spent foamed resin is lowered, and the above-mentioned problems occur, making it difficult to recycle to re-create the foamed product.

Laid-Open Patent Publication No. 10-2001-0103841 (published date: November 24, 2001) "Waste foamed resin crushing device" Patent Publication No. 10-2021-0061702 (published date: May 28, 2021) "Styrofoam crusher"

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a grinding device for pulverizing and regenerating particles in the form of raw materials by pulverizing the waste foamed resin, by operating the crushing device to produce the waste foamed resin. The grinding operation is not a grinding method using a grinding blade, but a millstone type, and by rubbing the waste foamed resin with frictional force to separate each spherical particle form, the noise generation during grinding can be significantly reduced. By fundamentally preventing the generation of generated dust, it is possible to prevent noise-induced hearing loss and respiratory diseases caused by continuous noise and scattering dust, thereby improving work stability and working environment. The purpose of this invention is to provide a new type of waste foamed resin crushing device that can significantly increase the production efficiency of recycled particles by lowering it to

Another object of the present invention is that the size of the waste foamed resin that is pulverized and discharged in the form of round particles can be formed uniformly, so that it is possible to mass-produce the waste foamed resin particles with excellent moldability, so that the recycled particles of the waste foamed resin can be produced Productivity improvement and quality improvement can be expected, and some products (low-density products such as sound insulation insulation and aquaculture buoys) that have been excessively foamed for the purpose of use have a certain density to meet the low foaming ratio (high density) suitable for packaging materials or boxes for agricultural and marine products. An object of the present invention is to provide a waste foamed resin crusher having a noise and dust reduction function that can reduce the generation of waste by increasing the recycling rate of the waste foamed resin by adjusting the ratio.

A waste foamed resin pulverizing device having a noise and dust reduction function according to an embodiment of the technical idea of the present invention for achieving the above object is a housing, rotatably installed inside the housing, and closed foaming inside the upper part The upper plate part integrally formed with the upper crushing plate inclined downward so that the resin is injected and a gear connected to the first driving motor is formed on the outer circumferential surface, and the waste foamed resin moves to the edge side and is processed into a circular chip shape at the lower part; A dispersion guide plate formed to have the same or similar diameter as the crushing plate and dispersedly moving the waste foamed resin flowing in from the upper plate in the center of the upper surface toward the edge, a lower crushing plate inclined downward toward the edge, and a second driving motor at the bottom The protrusion to be connected includes a crushing part formed integrally with the upper plate part and the lower plate part rotating in different directions, wherein the upper plate part and the lower plate part rotate in an eccentric form with the centers of rotation spaced apart from each other to rotate the upper crushing plate and the lower crushing plate It can be achieved by a waste foamed resin pulverizing device having a noise and dust reduction function, characterized in that the spent foamed resin introduced from the pulverizing space formed therebetween is rubbed in the form of a millstone and pulverized into granules in the form of particles.

A second connection hole to which the protrusion formed in the lower portion of the lower plate is coupled is formed in the upper portion, and a first connection hole to which the driving shaft of the second driving motor is coupled is formed in the lower portion, and a screw communicating with the first connection hole and the second connection hole is formed on the side surface. The ball further includes a height adjusting part integrally formed, wherein the drive shaft coupled to the first and second connection holes and the protrusion are screwed to the screw hole in a state where the coupling depth is adjusted to adjust the height of the lower plate. is characterized by

Expanded Poly Styrene (EPS) with a softening point in the range of 95°C to 100°C or expanded polypropylene (EPS) having a softening point in the range of 120°C to 140°C ( EPP, Expanded Poly Propylene) characterized in that it further comprises a heater for softening.

It characterized in that it further comprises a screw feeder which is integrally formed inside the inlet of the upper plate and forcibly moves the waste foamed resin flowing in from the upper part to the lower part.

The grinding space between the upper crushing plate and the lower crushing plate is characterized in that when the width of the inlet side is 1, the width of the outlet is gradually narrowed toward the outlet at a ratio of 0.3.

The rotation center of the upper plate part and the rotation center of the lower plate part are spaced apart in the range of about 5 mm to 15 mm and rotate in different directions in an eccentric state to process the waste foamed resin into granular particles.

The waste foamed resin particles discharged through the pulverization space are introduced, and the size of the waste foamed resin particles can be uniformly screened, so that it further comprises a screen part that classifies the particles into reusable particles and non-reusable particles.

The screen part has an opening part with an upper part extended in a hopper shape and a semicircle shape with a lower part so that the spent foamed resin particles discharged through the crushing space are introduced to surround the screw, and an inclined surface extending outwardly on the surface A case having a plurality of discharge holes and a discharge unit on one side, and a screw accommodated in the case and connected to an external driving means to rotate, and a screw formed with a brush attached to the inner surface of the case on the edge of the wing do it with

The screw is characterized in that it further comprises a plurality of force transfer plate formed between the blade and the blade.

As described above, the waste foamed resin pulverizing device having a noise and dust reduction function according to the present invention forms a pair of pulverizing plates rotating in opposite directions in the form of a millstone, and primary pulverized closed foaming into the space between the pulverizing plates. By inserting resin and discharging the waste foamed resin pulverized toward the edge in the form of particles, the waste injected inside in the millstone type according to the present invention in comparison with the pulverization method of pulverizing the waste foamed resin into pieces using a conventional shredding blade It is a pulverizing device that rubs and pulverizes the foamed resin, and it can significantly reduce the noise generated during operation, thereby preventing diseases such as noise-induced hearing loss, and thus improving work stability through improvement of the work environment.

In particular, since the pulverization of the waste foamed resin is made in the form of grinding the waste foamed resin by rubbing it in a millstone type, the generation of waste straw foam that is scattered in the air in the form of fine dust is remarkable compared to when pulverizing using a crushing blade. By preventing indoor air pollution in the workplace due to fine dust, it is possible to maintain the indoor air in the workplace in a comfortable state at all times, and to prevent worker health and environmental pollution.

In addition, since the waste foamed resin particles discharged in the form of particles through the pulverization unit are discharged in a certain range of sizes, excellent quality waste foamed resin chip particles can be produced in large quantities, and the amount of finely pulverized waste foamed resin during production is significantly reduced. It is effective in that it can be expected to improve the productivity and quality of the waste foamed resin particles.

In addition, the waste foamed resin particles discharged from the crushing unit are separated into waste foamed resin particles having a uniform size once again through the screen unit, so that the waste foamed resin chips finally discharged have a uniform size and are produced using the waste foamed resin chips. It has the effect of improving the quality of products such as shape products, building materials, buoyancy materials, and insulation materials.

1 is a schematic diagram of a waste foamed resin pulverizing device having a noise and dust reduction function according to a first embodiment of the present invention;
2 is a plan view of a waste foamed resin pulverizing device having a noise and dust reduction function according to a first embodiment of the present invention;
3 is a cross-sectional view of a pulverizing unit of a waste foamed resin pulverizing device having a noise and dust reduction function according to a first embodiment of the present invention;
Figure 4 is a schematic view of a pulverizing unit of the waste foamed resin pulverizing device having a noise and dust reduction function according to the first embodiment of the present invention;
5 is a schematic view showing the rotational form of the crushing unit among the waste foamed resin crushing device having a noise and dust reduction function according to the first embodiment of the present invention;
6 is a cross-sectional view of a height adjustment part of the waste foamed resin crusher having a noise and dust reduction function according to the first embodiment of the present invention;
7 is a perspective view of a screen part of a waste foamed resin pulverizing device having a noise and dust reduction function according to a first embodiment of the present invention;
8 is a perspective view of a screw formed in the screen part of the waste foamed resin pulverizing device having a noise and dust reduction function according to the first embodiment of the present invention;
9 is a schematic view of a screen part of a waste foamed resin pulverizing device having a noise and dust reduction function according to a first embodiment of the present invention;
10 is a photo of the waste foamed resin in the form of chips pulverized by the waste foamed resin pulverizing device having a noise and dust reduction function according to the first embodiment of the present invention;

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiment is capable of various changes and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, it should not be understood that the scope of the present invention is limited thereby.

On the other hand, the meaning of the terms described in the present invention should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

When a component is referred to as being “connected to” another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. Meanwhile, other expressions describing the relationship between elements, that is, "between" and "between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The singular expression is to be understood to include the plural expression unless the context clearly dictates otherwise, and terms such as "comprise" or "have" are not intended to refer to the specified feature, number, step, action, component, part or any of them. It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms defined in general used in the dictionary should be interpreted as having the same meaning in the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

Now, with reference to the drawings with respect to the waste foamed resin pulverizing device having a noise and dust reduction function according to a first embodiment of the present invention will be described in detail.

1 of the accompanying drawings is a schematic view of a waste foamed resin crushing device having a noise and dust reduction function according to a first embodiment of the present invention, and FIG. 2 is a noise and dust reduction function according to a first embodiment of the present invention. It is a plan view of a waste foamed resin pulverizing device having, and FIG. 3 is a cross-sectional view of a pulverizing part of a waste foamed resin pulverizing device having a noise and dust reduction function according to a first embodiment of the present invention, and FIG. 4 is a first embodiment of the present invention A schematic diagram of a pulverizing unit in a waste foamed resin pulverizing device having a noise and dust reduction function according to 6 is a cross-sectional view of a height adjustment part of a waste foamed resin pulverizing device having a noise and dust reduction function according to a first embodiment of the present invention, and FIG. 7 is a first embodiment of the present invention. A perspective view of a screen part of a waste foamed resin pulverizing device having a noise and dust reduction function according to an example, and FIG. 8 is a screen of a waste foamed resin pulverizing device having a noise and dust reduction function according to the first embodiment of the present invention It is a perspective view of a screw formed in the part, and FIG. 9 is a schematic view of a screen part of a waste foamed resin crushing device having a noise and dust reduction function according to a first embodiment of the present invention, and FIG. It is a picture of the waste foamed resin in the form of chips pulverized by the waste foamed resin pulverizing device having a noise and dust reduction function according to the first embodiment.

The present invention can minimize the noise of the crushing device by pulverizing the spent foamed resin injected into the crushing device in a millstone type, and in particular, it is possible to variously control the size of the discharged foamed resin as well as the spent foamed resin It is possible to prevent the generation of dust by physically blocking the particles from being pulverized into small pieces and scattering in the air, and at the same time, it is possible to select and discharge the discharged foamed resin particles by size, so that the recycled foamed resin particles of various sizes can be produced. It is characterized by providing a waste foamed resin pulverizing device having a noise and dust reduction function.

As shown, the waste foamed resin pulverizing device (hereinafter referred to as 'pulverization device') (A) having a noise and dust reduction function according to the present invention (A) is largely a housing (1) and an upper portion of the housing (1). The installed and primary crushed waste foamed resin is rubbed into a millstone and crushed into chips, and the waste foamed resin chips formed in the lower portion of the crushing unit 100 and discharged after grinding are separated and sorted by size. It is composed of a screen unit 200.

The housing 1 is configured by connecting a plurality of frames 1a having a hollow tube shape to each other, and the crushing unit 100 and the screen unit 200 are installed therein, respectively, or can be independently fixedly installed. there is.

In addition, the size and shape of the housing 1 may be variously modified according to the installation environment in which the crushing device A is installed and the size and installation location of the crushing unit 100 and the screen unit 200 .

The crushing unit 100 is formed on the upper portion of the housing 1 and has an input unit 10 having a hopper shape into which the primary crushed waste foamed resin is put, and the lower portion of the input unit 10 is inserted into the housing ( The upper plate part 20 assembled in a rotatable form in 1), the first driving motor 30 connected to the upper plate part 20 by a chain to rotate the upper plate part 20, and the upper plate part 20 in the lower part The lower plate 40 is formed to be spaced apart from each other and provides a pulverizing space (B) in which the waste foamed resin is pulverized therein, and the lower plate 40 is formed under the lower plate 40 to rotate the lower plate 40. It is composed of a second driving motor 50 and a height adjusting unit 60 formed between the second driving motor 50 and the lower plate part 40 to adjust the height of the lower plate part 40 .

Also, a heater unit 70 for supplying a heat source to the lower panel unit 40 is formed between the lower panel unit 40 and the height adjustment unit 60 .

That is, the material of the Styrofoam discarded by the configuration of the heater unit 70 is expanded polystyrene (EPS) having a softening point in the range of 95°C to 100°C, as well as expanded polystyrene (EPS) having a softening point in the range of 120°C to 140°C. Even propylene (EPP, Expanded Poly Propylene) has the characteristic that it can be processed into a chip shape through the temperature control of the heater unit 70 .

The input unit 10 is configured in the form of a hopper with a hollow inside, and the lower part is connected to the inside of the upper plate 20 to induce the primary pulverized waste foamed resin to be injected.

The upper plate part 20 has a cylindrical inlet part having a screw fitter 21 formed therein and a gear 22 formed outside so that the primary pulverized waste foamed resin flows into the lower part through the input part 10 in the central part. (23) and the upper crushing plate 24, which is processed into a circular chip shape while the waste foamed resin introduced into the lower part moves toward the edge, is integrally formed.

In addition, the upper portion of the upper plate 20 is connected to the bearing block 1b installed in the housing 1 and is installed in a rotatable form, and the gear 22 formed on the outside of the inlet 23 is the upper part of the upper plate 20 . It is installed on one side and is connected to the first driving motor 30 fixed to the housing 1 by a chain, and the upper plate part 20 is rotated by the driving of the first driving motor 30 .

In addition, the inner surface of the upper crushing plate 24 is formed to be rough, so that the waste foamed resin can be processed into a circular chip shape without slipping in the crushing space (B) between the upper plate part 20 and the lower plate part 40 after the car. let it be

In addition, the upper crushing plate 24 is configured to be gradually inclined downward in the range of 3 to 5 degrees to the outside of the inlet 23 so that the spent foamed resin injected into the crushing space B moves to the outside and is processed. induce

The lower plate part 40 is formed to have the same or similar diameter as the upper crushing plate 24, and a dispersion guide plate 41 for dispersing and moving the waste foamed resin flowing in from the upper plate part 20 to the edge side in the central part of the upper surface. , the lower crushing plate 42 which is formed to be inclined downward gradually in the range of 1 degree to 3 degrees toward the edge is integrally formed, and the lower part is connected to the second drive motor 50 fixed to the housing 1 and can be rotated independently have a form

Furthermore, the upper plate part 20 and the lower plate part 40 are formed to have different rotation centers and rotate in different directions in an eccentric state, so that the spent foamed resin injected into the crushing space (B) inside rotates evenly. It is pulverized in the form of rubbing and is formed into granular particles while moving outward along the slope formed to be slightly inclined downward.

That is, as shown in FIG. 4, the rotation center (a) of the upper plate part 20 and the rotation center (b) of the lower plate part 40 are spaced apart from each other by about 5 mm to 15 mm and rotate in different directions in an eccentric state. However, in the case of large particles of the spent foamed resin input, the eccentricity is increased in the range of 10mm to 15mm, and the waste foamed resin of large particles is processed into granular particles. The eccentricity is adjusted in response to the injected waste foamed resin particles by processing the small particles of waste foamed resin into granular particles by making it smaller.

In addition, the waste foamed resin introduced into the crushing space (B) between the upper crushing plate 24 and the lower crushing plate 42 is a crushing space (B) in which the upper crushing plate 24 is inclined downward in the range of 3 degrees to 5 degrees. ), it moves outward and is processed in the form of chips. When the width of the inlet (C) side of the crushing space (B) is 1, the width of the outlet (d) is 0.3 at the rate of the outlet (d) By forming the narrow side, the spent foamed resin is pulverized in the form of particles in the pulverizing space (B), and the density and size of pulverized chips are uniformly controlled.

Furthermore, the waste foamed resin is moved in the pulverizing space (B), and a penetrating liquid chemical curing agent is added in the process of being pulverized and separated in the form of particles, so that the density of the waste foamed resin particles can be firmly formed.

On the other hand, the lower plate part 40 forms a height adjustment part 60 in a portion connected to the second drive motor 50 so that the height of the lower plate part 40 can be adjusted so that the waste foamed resin particles are processed and discharged. to be able to control the size and density of

That is, as shown in FIG. 6 , the height adjustment unit 60 includes a first connection hole 61 to which the drive shaft 51 of the second driving motor 50 is coupled to the lower portion and the lower portion of the lower plate portion 40 to the upper portion. The second connection hole 62 to which the protrusion 43 formed is integrally formed, and a screw hole 63 communicating with one side of the first connection hole 61 and the second connection hole 62 is formed. The driving shaft 51 and the protrusion 43 coupled to each of the connection holes 61 and 62 are pressed in a screw-fastening manner to firmly fix the coupled state.

The screw hole in a state in which the coupling depth of the driving shaft 51 and the protrusion 43 coupled to the first connection hole 61 and the second connection hole 62 is adjusted by the height adjusting part 60 having the above configuration. By pressing and fixing the outer surface of the driving shaft 51 and the protrusion 43 coupled by screwing to the 63, it is possible to substantially adjust the height of the lower plate portion 40.

In addition, the lower plate part 40 forms a heater part 70 capable of supplying a heat source to the entire lower plate part 40 at the lower part and adjusts the temperature so that the material of the waste foamed resin injected has a softening point of 95 ° C. to 100 ° C. Expanded Poly Styrene (EPS), which is in the range, as well as expanded polypropylene (EPP, Expanded Poly Propylene) with a softening point in the range of 120°C to 140°C, can be processed in the form of chips by controlling the temperature of the heater unit (70). there is a characteristic

On the other hand, the waste foamed resin is processed into particles through the crushing space (B) formed in the space between the upper crushing plate 24 formed on the upper plate part 20 and the lower crushing plate 42 formed on the lower plate part 40. When explaining the process in detail, as shown in FIGS. 3 to 4, first, the waste foamed resin mass that has been primarily pulverized through a general pulverizing device is introduced into the inlet 23 of the upper plate 20 through the input unit 10. When put into the furnace, the screw fitter 21 formed inside the inlet 23 rotates like the upper plate 20 to forcibly move the introduced waste foamed resin to the lower side, and the spent foamed resin moved to the lower side of the inlet 23 is It is dispersed to the outside of the circle by the dispersion guide plate 41 formed on the lower plate part 40 and is moved to the grinding space (B).

As described above, the waste foamed resin moved to the crushing space (B) moves toward the edge and moves toward the edge by the upper crushing plate 24 and the lower crushing plate 42 rotating in a state eccentric in different rotational directions. The surface is continuously rubbed and pulverized in the form of particles, and after being pulverized to a certain size, it is rounded and discharged to the outside of the upper crushing plate 24 and the lower crushing plate 42 .

By the configuration of the crushing unit 100 as described above, the waste foamed resin introduced into the input unit is crushed in the crushing space (B) formed in the space between the upper plate part 20 and the lower plate part 40, and the grinding process is performed on the blade. The waste foam resin injected from the top and bottom is pressurized rather than collided by eccentricity, and the waste foam resin is pulverized in the form of rubbing by eccentricity, thereby not generating noise and physically preventing fine particles floating in the air during grinding It has a feature that can reduce the generation of noise and dust.

On the other hand, the waste foamed resin pulverized into particles by the pulverizing unit 100 as described above can uniformly filter the size of the waste foamed resin chips discharged by the screen unit 200 formed on one side of the pulverizing unit 100. It can be classified into reusable and non-reusable particles, providing a synergistic effect of performing multi-step filtering in one device.

That is, as shown in FIGS. 7 to 9 , the screen unit 200 has a shape surrounding the screw by forming an open part 213 with an upper part extended in a hopper shape and a semicircular shape with a lower part, and a plurality of A case 210 having a discharge hole 211 and a discharge unit 212 on one side, and a screw 220 accommodated in the case 210 and connected to an external driving means (not shown) to rotate ) is included.

In addition, the opening 213 may be configured in various shapes depending on the size and shape of the housing 1 and the location and shape of the crushing unit 100 , and waste foamed resin particles discharged through the crushing space (B). may be variously deformed within a range that can be introduced into the case 210 .

In addition, a brush 222 is formed at the end of the wing 221 of the screw 220 , and the brush 222 is in close contact with the inside of the case 210 , and as the screw 220 rotates, the case 210 . It has a form in which the spent foamed resin particles injected into the inside are sweeped and moved to the discharge unit 212 side to be discharged.

At this time, the discharged waste foamed resin particles having a normal size that can be recycled are washed by the brush 222 and moved toward the discharge unit 212 to be collected, and the waste foamed resin chip of a small size that is undersized is It is discharged to the outside through the discharge hole 211 and separately collected, it is possible to produce a uniform waste foamed resin chip with a predetermined size as shown in FIG. 10 .

In addition, even if the waste foamed resin particles discharged through the discharge hole 211 are caught in the discharge hole 211 due to elasticity, the brush 222 is caught in a narrow range by the inclined surface 211a formed to expand to the outside, so that the brush 222 is the case ( It is in close contact with the inner surface of the 210, the jamming in the process of rotation is eliminated and can be naturally discharged to the outside, thereby preventing clogging of the discharge hole 211.

Moreover, the spent foamed resin particles injected into the case 210 have a small specific gravity and are very light, so when the screw 220 rotates, they do not move to the lower part of the case 210 and float on the upper part of the spent foamed resin particles using the screw 220 . In order to solve the problem of not being efficiently classified, a plurality of forced transfer plates 223 are formed at regular intervals between the blades 221 of the screw 220, and the forced transfer plate 223 rotates and floats on the lung. By forcibly moving the foamed resin chips downward, the efficiency of sorting operation can be improved.

Through the configuration of the screen unit 200 as described above, the waste foamed resin particles introduced from the pulverizing unit 100 can be classified by size and individually discharged and packaged, thereby improving the quality of the waste foamed resin chip as well as the waste foamed resin. It has the characteristic of improving the quality of products produced using particles, such as building materials, buoyancy materials, insulation materials, packaging materials, and boxes for agricultural and marine products.

As described above, the waste foamed resin pulverizing device having a noise and dust reduction function according to the present invention forms a pair of pulverizing plates rotating in opposite directions in the form of a millstone, and primary pulverized closed foaming into the space between the pulverizing plates. By inserting resin and discharging the waste foamed resin pulverized toward the edge in the form of particles, the waste injected inside in the millstone type according to the present invention in comparison with the pulverization method of pulverizing the waste foamed resin into pieces using a conventional shredding blade It is possible to significantly reduce the noise generated during operation of the pulverizing device that rubs and pulverizes the foamed resin, thereby preventing diseases such as noise-induced hearing loss, and has a structural feature that improves work stability through improvement of the work environment. , Since the pulverization of the waste foamed resin is in the form of grinding the waste foamed resin by rubbing it in a millstone type, the generation of waste foamed resin dust that is scattered in the air in the form of fine dust is remarkable compared to the pulverization using a crushing blade. By preventing indoor air pollution in the workplace due to fine dust, it is possible to keep the indoor air in the workplace in a comfortable state at all times, and to prevent worker health and environmental pollution.

In addition, since the foamed resin particles discharged in the form of chips through the pulverization unit are discharged in a certain size range, it is possible to produce a large amount of waste foamed resin particles of excellent quality, and the amount of finely pulverized waste plastics during production is significantly reduced. It has the characteristics of improving the productivity and quality of the spent foamed resin particles.

In addition, the waste foamed resin particles discharged from the crushing unit are separated into waste foamed resin particles having a uniform size once again through the screen unit, so that the waste foamed resin particles finally discharged have a uniform size and are produced using the waste foamed resin particles It has the characteristic of greatly improving the quality of various foamed resin products.

As described above, the best embodiment has been disclosed in the drawings and the specification. Although specific terms are used herein, they are used only for the purpose of describing the present invention and are not used to limit the meaning or limit the scope of the present invention described in the claims. Therefore, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

100: crushing unit 10: input unit
20: upper plate 21: screw fitter
22: gear 23: inlet
24: upper crushing plate 30: first driving motor
40: lower plate 41: dispersion guide plate
42: lower part swash plate 43: protrusion
50: braking motor 60: height adjustment unit
61: first connection hole 62: second connection hole
63: screw hole 70: heater part
200: screen unit 210: case
211: discharge hole 212: discharge part
213: opening 220: screw
221: wings 222: brush
223: forced transfer plate

Claims (9)

In the waste foamed resin pulverizing device for pulverizing the waste foamed resin,
The waste foamed resin crushing device (A),
a housing (1);
It is rotatably installed inside the housing (1), the waste foamed resin is put into the upper part, and the inlet part 23 in which the gear 22 connected to the first drive motor 30 is formed on the outer circumferential surface, and the lung at the lower part The upper plate portion 20 is integrally formed with the upper crushing plate 24 inclined downward so that the foamed resin moves toward the edge and is processed into a circular particle shape, and the upper crushing plate 24 is formed in the same or similar diameter as the upper crushing plate 24 and is formed in the center of the upper surface A dispersion guide plate 41 for dispersing and moving the waste foamed resin flowing in from the upper plate 20 to the edge side, a lower crushing plate 42 inclined downward toward the edge, and a second driving motor 50 at the bottom The pulverizing unit 100 comprising the lower plate portion 40 in which the connected protrusion 43 is integrally formed so that the upper plate 20 rotates in different directions;
The waste foamed resin particles discharged through the crushing space (B) are introduced, and the size of the waste foamed resin particles can be uniformly filtered, so that the screen unit 200 is classified into reusable particles and non-reusable particles.
Here, the upper plate part 20 and the lower plate part 40 are rotated in an eccentric form with the rotation centers spaced apart from each other and introduced from the crushing space (B) formed between the upper crushing plate 24 and the lower crushing plate 42. A waste foamed resin pulverizing device with noise and dust reduction function, characterized in that the waste foamed resin is rubbed in the form of a millstone and pulverized into granules in the form of particles.
According to claim 1,
A second connection hole 62 to which the protrusion 43 formed in the lower portion of the lower plate 40 is coupled is formed in the upper portion, and the first connection hole is formed in the lower portion to which the driving shaft 51 of the second driving motor 50 is coupled. The ball 61 is formed and further includes a height adjustment part 60 integrally formed with a screw hole 63 communicating with the first connection hole 61 and the second connection hole 62 on the side surface,
Here, in a state in which the coupling depth of the driving shaft 51 coupled to the first connection hole 61 and the second connection hole 62 and the protrusion 43 is adjusted, the lower plate is screwed into the screw hole 63 . A waste foamed resin pulverizing device having a noise and dust reduction function, characterized in that the height of the part 40 is adjusted.
According to claim 1,
Expanded Poly Styrene (EPS) with a softening point in the range of 95°C to 100°C or a softening point of 120°C to 140°C. A waste foamed resin pulverizing device having a noise and dust reduction function, characterized in that it further comprises a heater unit 70 for softening expanded polypropylene (EPP, Expanded Poly Propylene) in the ℃ range.
According to claim 1,
It has a noise and dust reduction function, characterized in that it further comprises a screw fitter 21 integrally formed inside the inlet 23 of the upper plate 20 to forcibly move the spent foamed resin flowing from the upper part to the lower part. Waste foamed resin crusher.
According to claim 1,
In the crushing space B between the upper crushing plate 24 and the lower crushing plate 42, when the width of the inlet portion C is 1, the width of the outlet portion d is 0.3 in the ratio of the outlet portion d) A waste foamed resin crushing device with a noise and dust reduction function, characterized in that it is gradually narrowed to the side.
According to claim 1,
The rotation center (a) of the upper plate part 20 and the rotation center (b) of the lower plate part 40 are spaced apart from each other in the range of 5 mm to 15 mm and rotate in different directions in an eccentric state to convert the waste foamed resin into granular particles. A waste foamed resin pulverizing device with a noise and dust reduction function, characterized by processing.
delete According to claim 1,
The screen unit 200 has an opening 213 with an upper part extended in a hopper shape so that the spent foamed resin particles discharged through the crushing space B are introduced and a lower part with a semicircular shape surrounding the screw. and a case 210 comprising a plurality of discharge holes 211 having an inclined surface 211a extending outwardly on the surface and a discharge portion 212 on one side;
The screw 220 is accommodated in the inside of the case 210 and is connected to an external driving means (not shown) and has a brush 222 formed on the edge of the wing 221 in close contact with the inner surface of the case 210 to rotate. ), a waste foamed resin pulverizing device having a noise and dust reduction function, characterized in that it includes
9. The method of claim 8,
The screw 220 is formed between the blades 221 and the blades 221 and further includes a plurality of forced transfer plates 223 for forcibly moving the spent foamed resin chips on the screw to the lower portion. A waste foaming resin crushing device with a reduction function.

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